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Firdavs [7]
2 years ago
8

The length of a rectangle is 3 inches more than its width. If the perimeter is 42 inches, find the dimensions of the rectangle.

Mathematics
2 answers:
mojhsa [17]2 years ago
5 0

The problem uses the perimeter formula.  P = 2w + 2l   where w is the width, and l is the length.

We know the length (l) is 3 inches longer than it's width (or l = w+3).  Substitute w +3 into Perimeter equation

P = 2w + 2(w+3).  That simplifies to P = 4w + 6.

Since P + 42,   we have 42 = 4w +6.  With some simple algebra we find that w = 9 and l = 12.

Hope this helps!

eimsori [14]2 years ago
3 0

Width is 12 and length is 9

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<h2>SOLVING</h2>

\Large\maltese\underline{\textsf{A. What is Asked}}

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\Large\maltese\underline{\textsf{This problem has been solved!}}

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